Graphics/vtkButtonSource.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkButtonSource.h,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkButtonSource_h
#define __vtkButtonSource_h

#include "vtkPolyDataSource.h"

class vtkCellArray;
class vtkFloatArray;
class vtkPoints;

#define VTK_TEXTURE_STYLE_FIT_IMAGE    0
#define VTK_TEXTURE_STYLE_PROPORTIONAL 1

class VTK_GRAPHICS_EXPORT vtkButtonSource : public vtkPolyDataSource 
{
public:
  void PrintSelf(ostream& os, vtkIndent indent);
  vtkTypeRevisionMacro(vtkButtonSource,vtkPolyDataSource);

  static vtkButtonSource *New();


  vtkSetClampMacro(Width,double,0.0,VTK_DOUBLE_MAX);
  vtkGetMacro(Width,double);


  vtkSetClampMacro(Height,double,0.0,VTK_DOUBLE_MAX);
  vtkGetMacro(Height,double);


  vtkSetClampMacro(Depth,double,0.0,VTK_DOUBLE_MAX);
  vtkGetMacro(Depth,double);


  vtkSetClampMacro(RadialRatio,double,1.0,VTK_DOUBLE_MAX);
  vtkGetMacro(RadialRatio,double);


  vtkSetClampMacro(CircumferentialResolution,int,4,VTK_LARGE_INTEGER);
  vtkGetMacro(CircumferentialResolution,int);


  vtkSetClampMacro(TextureResolution,int,1,VTK_LARGE_INTEGER);
  vtkGetMacro(TextureResolution,int);


  vtkSetClampMacro(ShoulderResolution,int,1,VTK_LARGE_INTEGER);
  vtkGetMacro(ShoulderResolution,int);


  vtkSetVector3Macro(Origin,double);
  vtkGetVectorMacro(Origin,double,3);


  vtkSetClampMacro(TextureStyle,int,VTK_TEXTURE_STYLE_FIT_IMAGE,
                                    VTK_TEXTURE_STYLE_PROPORTIONAL);
  vtkGetMacro(TextureStyle,int);
  void SetTextureStyleToFitImage() 
    {this->SetTextureStyle(VTK_TEXTURE_STYLE_FIT_IMAGE);}
  void SetTextureStyleToProportional() 
    {this->SetTextureStyle(VTK_TEXTURE_STYLE_PROPORTIONAL);}


  vtkSetVector2Macro(TextureDimensions,int);
  vtkGetVector2Macro(TextureDimensions,int);


  vtkSetVector2Macro(ShoulderTextureCoordinate,double);
  vtkGetVector2Macro(ShoulderTextureCoordinate,double);


  vtkSetMacro(TwoSided,int);
  vtkGetMacro(TwoSided,int);
  vtkBooleanMacro(TwoSided,int);

protected:
  vtkButtonSource();
  ~vtkButtonSource() {}

  void Execute();

  double Width;
  double Height;
  double Depth;

  int   CircumferentialResolution;
  int   TextureResolution;
  int   ShoulderResolution;

  double Origin[3];
  double ShoulderTextureCoordinate[2];

  double RadialRatio;
  int TextureStyle;
  int TextureDimensions[2];
  int TwoSided;

private:
  vtkButtonSource(const vtkButtonSource&);  // Not implemented.
  void operator=(const vtkButtonSource&);  // Not implemented.

  //internal variable related to axes of ellipsoid
  double A;
  double A2;
  double B;
  double B2;
  double C;
  double C2;
  
  double ComputeDepth(int inTextureRegion, double x, double y, double n[3]);
  void InterpolateCurve(int inTextureRegion, vtkPoints *newPts, int numPts,
                        vtkFloatArray *normals, vtkFloatArray *tcoords, 
                        int res, int c1StartPoint,int c1Incr,
                        int c2StartPoint,int s2Incr, int startPoint,int incr);
  void CreatePolygons(vtkCellArray *newPolys, int num, int res, int startIdx);
  void IntersectEllipseWithLine(double a2, double b2, double dX, double dY, 
                                double& xe, double& ye);
  
    
};

#endif

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